The MAX3483MAX3485MAX3486MAX3488MAX3490 and MAX3491 are 3.3V, low-power transceivers for RS-485 and RS-422Communication Each part contains one driver and one receiver. The MAX3483 and MAX3488 feature slew-rate-limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 250kbps. The partially slew-rate-limited MAX3486 transmits up to 2.5Mbps. The MAX3485MAX3490 and MAX3491 transmit at up to 10Mbps.Drivers are short-circuit Current Limited and are protected against excessive power dissipation by the
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rmal shutdown circuitry that places the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic-high output if both inputs are open circuit.The MAX3488MAX3490 and MAX3491 feature full-duplex Communication while the MAX3483MAX3485 and MAX3486 are designed for half-duplex Communication By Maxim Integrated Products